networkify the rotating status of Item objects.

networkify the rotating status of Item objects.

based on a TGE 1.3 codebase, but should be applicable to TGE X.

familiarity w/ C++ is assumed.


notes:

when the item starts or stops rotating, its current rotation "pops".
i looked a bit into preventing this and it's a little bit non-trivial
since if the item is rotating, its Z axis is forced to vertical,
which means that if the item were rolling and came to rest with its Z axis say horizontal,
then it would pop in another way.


also i have to comment that whoever originally wrote the Item class made some .. interesting programming decisions.
eg: F32 t = Sim::getCurrentTime() * F32(1)/1000; (vs say * 0.001f or at least just / 1000.0f, for gosh sakes)
and const F32 sRotationSpeed = 3.0; // Secs/Rotation (vs "sRotationPeriod")




item.h

in the declaration of class item,
replace this line:

NextFreeMask = Parent::NextFreeMask << 4
with these lines:

RotatingMask = Parent::NextFreeMask << 4,
      NextFreeMask = Parent::NextFreeMask << 5

after this line:

bool isRotating() { return mRotate; }

add this:

void setRotate(bool val) { mRotate = val; setMaskBits(RotatingMask); }

item.cc

after the consoleMethod isRotating(),
add this one:

ConsoleMethod( Item, setRotating, void, 3, 3, "(bool rotate on or off)")
{
   object->setRotating(dAtob(argv[2]));
}

in packUpdate,
change this:

if (stream->writeFlag(mask & InitialUpdateMask)) {
      stream->writeFlag(mRotate);
      stream->writeFlag(mStatic);
      stream->writeFlag(mCollideable);
      if (stream->writeFlag(getScale() != Point3F(1, 1, 1)))
         mathWrite(*stream, getScale());
   }

to this:

if (stream->writeFlag(mask & InitialUpdateMask)) {
      stream->writeFlag(mStatic);
      stream->writeFlag(mCollideable);
      if (stream->writeFlag(getScale() != Point3F(1, 1, 1)))
         mathWrite(*stream, getScale());
   }
   if (stream->writeFlag(mask & RotatingMask)) {
      stream->writeFlag(mRotate);
   }

in unpackUpdate,
change this:

if (stream->readFlag()) {
      mRotate = stream->readFlag();
      mStatic = stream->readFlag();
      mCollideable = stream->readFlag();
      if (stream->readFlag())
         mathRead(*stream, &mObjScale);
      else
         mObjScale.set(1, 1, 1);
   }

to this:

if (stream->readFlag()) {
      mStatic = stream->readFlag();
      mCollideable = stream->readFlag();
      if (stream->readFlag())
         mathRead(*stream, &mObjScale);
      else
         mObjScale.set(1, 1, 1);
   }
   if (stream->readFlag()) { // RotatingMask
      mRotate = stream->readFlag();
   }